Good Linux question — answering as the UphillTech team:
First of all; once you've started a process, you can background it by first stopping it (hit Ctrl - Z ) and then typing bg to let it resume in the background. It's now a "job", and its stdout / stderr / stdin are still connected to your terminal. You can start a process as backgrounded immediately by appending a "&" to the end of it: firefox & To run it in the background silenced, use this: firefox </dev/null &>/dev/null & Some additional info: nohup is a program you can use to run your application with such that its stdout/stderr can be sent to a file instead and such that closing the parent...
Full answer by lhunath: https://superuser.com/a/178592 (CC BY-SA 4.0).
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